package second;
import java.util.*;
public class test {
    public static void main(String[] args) {
        Scanner sc= new Scanner(System.in);
        int a= sc.nextInt();
        int b =sc.nextInt();
        int c = sc.nextInt();
        if(a-b-c<0||(b-a-c)<0||(c-a-b)<0){
            throw new IllegalArgumentException("三边不能构成三角形");
        }System.out.println("三边长度为 a="+a+" b="+b+" c="+c);
    }
}
class IllegalArgumentException extends RuntimeException{
    public IllegalArgumentException(String message){
        super (message);
    }
}